/Engine/Plugins/Experimental/GeometryFlow/Source/GeometryFlowCore/Public/BaseNodes/SwitchNode.h
Determine which Inputs are required for the desired Output. This replaces the default behavior ("all inputs") with only the selected Input returned as a Requirement, which in turn allows the Graph Evaluator to skip evaluation of the other inputs.
virtual void CollectRequirements ( const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & Outputs, [TArray](API\Runtime\Core\Containers\TArray)< [FEvalRequirement](API\Plugins\GeometryFlowCore\FEvalRequirement) > & RequiredInputsOut )